package chapter04.demo4.Example16;
class Animal{
    public void shout(){
        System.out.println("喵喵喵.......");
    }
}
class Dog extends Animal {
    public void shout() {
        System.out.println("汪汪......");
    }
    public void eat(){
        System.out.println("吃骨头......");
    }
}
public class Example16 {
    public static void main(String[] args) {
        Animal an = new Dog();
        Dog dog = (Dog) an;
        dog.shout();
        dog.eat();
    }
}
